package com.springcloudalibaba.controller;

import com.alibaba.csp.sentinel.annotation.SentinelResource;
import com.alibaba.csp.sentinel.slots.block.BlockException;
import com.springcloud.entities.CommonResult;
import com.springcloud.entities.PayMent;
import com.springcloudalibaba.myhandler.CustomerBlockHandler;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;

@RestController
public class RateLimitController {
    @GetMapping("/byResource")
    @SentinelResource(value = "byResource",blockHandler = "customerBlockHandler")
    public CommonResult byResource(){
        return new CommonResult(200,"按资源名称限流测试OK",
                new PayMent(2020L,"serial001"));
    }
    public CommonResult handleException(BlockException exception)
    {
        return new CommonResult(444,
                exception.getClass().getCanonicalName()+"\t 服务不可用");
    }
    @GetMapping("/rateLimit/byUrl")
    @SentinelResource(value = "byUrl")
    public CommonResult byUrl()
    {
        return new CommonResult(200,"按url限流测试OK",new PayMent(2020L,"serial002"));
    }

    /**
     * 自定义通用的限流处理逻辑，bloclHandlerClass = CustomerBlockHandler.class
     * blockHandler = HandleException2
     * 上述配置 找CustomerBlockHandler 类里的handleException2方法进行兜底处理
     */

    //自定义通过的限流处理逻辑
    @GetMapping("/rateLimit/customerBlockHandler")
    @SentinelResource(value = "customerBlockHandler",
            blockHandlerClass = CustomerBlockHandler.class,
    blockHandler = "handleException2")
    public CommonResult customerBlockHandler(){
        return new CommonResult(200, "按客户自定义限流处理逻辑");
    }

}
